Version 1.3 release.

Updates CHANGELOG, version, docs.
diff --git a/docs/dyn/manager_v1beta2.templates.html b/docs/dyn/manager_v1beta2.templates.html
index 0579ddb..a6b124d 100644
--- a/docs/dyn/manager_v1beta2.templates.html
+++ b/docs/dyn/manager_v1beta2.templates.html
@@ -117,6 +117,7 @@
           "lbModule": {
             "description": "A String",
             "portRange": "A String",
+            "sessionAffinity": "A String",
             "ipProtocol": "A String",
             "healthChecks": [
               "A String",
@@ -190,6 +191,7 @@
                     "initializeParams": { # Initialization parameters for creating a new disk. # Create the new disk using these parameters. The name of the disk will be <instance_name>-<five_random_charactersgt;.
                       "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                       "sourceImage": "A String", # The fully-qualified URL of a source image to use to create this disk.
+                      "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
                     },
                     "boot": True or False, # If true, indicates that this is the root persistent disk.
                     "attachment": { # How to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -287,6 +289,7 @@
         "lbModule": {
           "description": "A String",
           "portRange": "A String",
+          "sessionAffinity": "A String",
           "ipProtocol": "A String",
           "healthChecks": [
             "A String",
@@ -360,6 +363,7 @@
                   "initializeParams": { # Initialization parameters for creating a new disk. # Create the new disk using these parameters. The name of the disk will be <instance_name>-<five_random_charactersgt;.
                     "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                     "sourceImage": "A String", # The fully-qualified URL of a source image to use to create this disk.
+                    "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
                   },
                   "boot": True or False, # If true, indicates that this is the root persistent disk.
                   "attachment": { # How to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -451,6 +455,7 @@
           "lbModule": {
             "description": "A String",
             "portRange": "A String",
+            "sessionAffinity": "A String",
             "ipProtocol": "A String",
             "healthChecks": [
               "A String",
@@ -524,6 +529,7 @@
                     "initializeParams": { # Initialization parameters for creating a new disk. # Create the new disk using these parameters. The name of the disk will be <instance_name>-<five_random_charactersgt;.
                       "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                       "sourceImage": "A String", # The fully-qualified URL of a source image to use to create this disk.
+                      "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
                     },
                     "boot": True or False, # If true, indicates that this is the root persistent disk.
                     "attachment": { # How to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -627,6 +633,7 @@
               "lbModule": {
                 "description": "A String",
                 "portRange": "A String",
+                "sessionAffinity": "A String",
                 "ipProtocol": "A String",
                 "healthChecks": [
                   "A String",
@@ -700,6 +707,7 @@
                         "initializeParams": { # Initialization parameters for creating a new disk. # Create the new disk using these parameters. The name of the disk will be <instance_name>-<five_random_charactersgt;.
                           "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                           "sourceImage": "A String", # The fully-qualified URL of a source image to use to create this disk.
+                          "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
                         },
                         "boot": True or False, # If true, indicates that this is the root persistent disk.
                         "attachment": { # How to attach a disk to a Replica. # How the disk will be attached to the Replica.